<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let arr=[1,2,0,0,0,3,0,6,0,9,10,0,50]
        let newarr=[]
        for(let i =0;i<arr.length;i++){
            const a =arr[i]
            if(a!=0){
                newarr.push(a)
            }
        }
        console.log(`${newarr}`)
    </script>
</body>
</html>